WO2008037963A1 - Améliorations concernant et portant sur l'installation de pilier ou de colonne - Google Patents

Améliorations concernant et portant sur l'installation de pilier ou de colonne Download PDF

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Publication number
WO2008037963A1
WO2008037963A1 PCT/GB2007/003575 GB2007003575W WO2008037963A1 WO 2008037963 A1 WO2008037963 A1 WO 2008037963A1 GB 2007003575 W GB2007003575 W GB 2007003575W WO 2008037963 A1 WO2008037963 A1 WO 2008037963A1
Authority
WO
WIPO (PCT)
Prior art keywords
pile
column
water
bed
gripping
Prior art date
Application number
PCT/GB2007/003575
Other languages
English (en)
Inventor
Neil Maxwell Williams
Original Assignee
Fugro Seacore Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fugro Seacore Limited filed Critical Fugro Seacore Limited
Publication of WO2008037963A1 publication Critical patent/WO2008037963A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D15/00—Handling building or like materials for hydraulic engineering or foundations
    • E02D15/08—Sinking workpieces into water or soil inasmuch as not provided for elsewhere
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor

Definitions

  • This invention relates to the handling of foundation piles and similar columns.
  • the present invention is concerned with the handling of relatively large diameter and lengthy foundation piles and similar columns .
  • the present invention is concerned with the installation of piles having lengths of, for example, fifty metres and diameters of several metres.
  • the present invention is concerned with the erection of such piles and columns in a marine, esturial, river,, lake, or other water environment.
  • the bed thereof will be referred to as the sea bed.
  • a method of erecting a pile or column at a required inclination in the bed of a volume of water including the steps of arranging the pile or column to be floatable in water, moving the pile or column when floating to a location at which it is required to be erected, holding the floating pile or column against displacement from the location, and tilting the pile or column from a horizontal floating position to the required angular positioning with respect to the vertical, and setting the pile or column in the bed of the water at said location.
  • a method of erecting a a pile or column or other column in the sea bed including the steps of, rendering the pile or column floatable in the water, displacing the pile or column whilst floating to the location at which it is desired to erect the pile or column, supporting/gripping the pile or column at a position offset from the region of the centre of gravity of the pile or column, exerting lift upon the pile or column at the offset position whilst enabling the pile or column to tilt under the action of gravity during said lifting to its required setting with respect to the seabed.
  • water is enabled to enter into the pile or column so as to enhance the rate of tilt.
  • an installation for handling a pile or column for its erection at a predetermined location from the bed of a volume of water including means for locating the pile or column at said predetermined location, means for physically engaging with the pile or column whilst it is floating in the water at a position offset from the region of the centre of gravity of the pile or column, and means for enabling the pipe or column to tilt to a required orientation with respect to the said bed,.
  • the means for locating the pile or column includes support elements for mounting means for gripping/supporting the pile of column at a position offset from the centre of gravity thereof, and means for enabling the pile or column to tilt to its required orientation whilst being gripped by the gripping means.
  • the support elements are elongate and are mounted from a support vessel or the like in such manner that the they may be displaced with respect to the support vessel such that the lower ends thereof may bear against the bed of the volume of water, and wherein means are provided to allow the gripping means to displace relative to the support elements to facilitate tilting of the pile or column upwardly to a required orientation with respect to the bed
  • the means for gripping/supporting the pile or column includes a trough like formation into which a selected length of the pile or column is nestable whilst floating, and including closure means serving to co-operate with that part of the pile or column that is immediately opposite to the region thereof thereof engaged by the trough like formation in such manner that the pile or column is firmly gripped.
  • the installation includes a second means for gripping/supporting the pile or column when in its required orientation at a location spaced above or below the position of the first mentioned means for supporting/gripping the pile or column, the arrangement being such that when the pile or column has been set to its required orientation the second gripping/supporting means adapted to exert further grip on the pile or column to enable the pile or column to be displaced to such extent that its lower end can engage with the bed of the water, whilst being supported by the means/units at two spaced apart locations lengthways of the pile or col -A-
  • both said gripping/support means are mounted from the support elements, the latter being located at opposite sides of a moon pool formation in a vessel and of such length the their lower ends are contactable with the bed of the volume of water, there being means for enabling the simultaneous displacement of the gripping/supporting means lengthways of the members to lower the pile or column so that the lower end thereof is contactable with the bed of the volume of water.
  • both said gripping/support means are mounted from upright members located at opposite sides of a moon pool formation in a vessel, the members being of such length the their lower ends are contactable with the seabed, there being means for enabling the simultaneous displacement of the gripping means/means/units lengthways of the members to lower the pile or column so that the lower end thereof is contactable with the seabed.
  • Figure 1 very schematically illustrates inter-alia; an installation for use in positioning a pile or column into an upstanding position in/from a sea or other water bed,
  • Figure 2 illustrates a first stage in the positioning of a pile or column for setting in an upright position in the sea or other water bed
  • Figures 3 to 6 schematically illustrate successive further stages involved in positioning and erecting a pile or column into an upstanding setting
  • Figure 7 schematically illustrates the installation from a direction transverse to that of the previous Figures
  • Figure 8 schematically illustrates the stage by stage tilting of the pile or column
  • Figure 9 illustrates in more detail the construction of a gripper/support means/unit
  • FIGS. 10 to 12 schematically illustrate successive stages of the engagement of a gripper/support means/unit with the pile or column only a schematic representation of supports for the means/nits being shown;
  • Figure 13 is a side view of a pipe/column which gripped by a gripper/support means/unit.
  • a working platform assembly 1 includes a working deck 2.
  • this marine working platform assembly 1 comprises a so called jack-up barge 3 that is floatable for transportation between locations of intended use in the manner of a barge that can be self propellable or otherwise manoeuvred .
  • the working deck 2 of the barge 3 includes a so-called moon pool 4 (Figure 7).
  • This pool can be located internally of the barge 3 or at one end thereof so that it opens out directly to the water.
  • the deck 2 as very schematically illustrated in Figure 7 two spaced side by side sections 5 one to each of opposite sides of the pool 4..
  • the barge is provided with upright support legs 6 that are liftable relative to the barge 3 when the latter is required to travel from one location to another and are lowerable to a working positions in which these support legs 6 serve to raise the barge 3 above the sea level SL and to maintain the barge in the raised position as shown in the drawings .
  • the sea or other water bed is indicated at SB.
  • the jack-up barge 3 is provided at one end region thereof in co-operation with the moon pool 4 and the side sections/decks 5 with a load lifting arrangement 7 (to be discussed in greater detail hereinafter) which is positionable as shown in Figures 1 to 8 in an upright position when required for the handling of loads, and which is retractable to a stowed horizontal position (not shown) whilst the barge is moving.
  • a load lifting arrangement 7 to be discussed in greater detail hereinafter
  • This load lifting arrangement 7 includes two side by side main support elements 8,9 respectively mounted one from each of said deck sections 5. and a support frame 10 that bridges the spaced deck sections 5 and thus the moon pool 4. As will be seen from Figures 1 to 7,. these support elements 8,9 when upright extend below the barge 3 to bear upon the seabed, and project upwards above the level of the raised barge 3.
  • the construction of the support frame is such as to bridge the space between the deck sections 5 and incorporates arrangements whereby the load lifting arrangement can be moved to a generally horizontal stowed position (not shown) during displacement of the barge 3.
  • the support frame mounts upper and lower pipe gripper/support means/units 11,12 respectively that bridge the support elements 8 and 9
  • the means/units are lengthways displaceable of the support elements 8 and 9 by any convenient means such as by being under the control of hydraulic motor drives.
  • a rack and pinion system 13 is very schematically indicated..
  • Each gripper/support means/unit 1 1,12 is of such construction as to have an open setting in which the unit can be engaged with a pile or column 14, and a closed setting in which each gripper/support means/unit 11/12 can be caused firmly to grip with the pile or column 14 in such manner that once in the closed setting displacement of the gripper/support means/means/units lengthways of the support elements lifts or lowers the pile or column engaged thereby .
  • the construction of these gripper/support means/means/units 11,12 will be considered in greater detail hereinafter
  • this Figure illustrates the jack-up barge 3 when it is raised and is supported by its support legs 6.
  • the pile or column 14 to be erected is initially pushed or towed,, for example, by a tug or other appropriate vessel 15 to the general location of the raised jack-up barge 3 and is then pushed into the space between the deck sections 5 into the moon pool 4 by the tug or other appropriate vessel 15. or is towed by means of a winch (not shown) provided on the the working deck 2/5 of the barge 3
  • the pile or column is advanced into working platform space/moon pool until the pile or column comes into contact with the submerged lower gripper/support arm 12.
  • the lower gripper/support means/unit 12 is so positioned lengthways of the associated support elements 8 and 9 that the pile or column 14 is able to float just above the pile or column receiving and locating part 6 i.e.,. float into engagement with the lower gripper/support unit 12 .
  • the extent to which the pile or column is moved over the gripper/support unit is such that the centre of gravity 17 of the pile or column is located to the left hand side (as shown in Figure 2) of the lower gripper/support unit 12 . That is the centre of gravity 17 of the pile or column is offset relative to the gripping zone (a typical offset distance being two metres).
  • the unit 12 is displaceable lengthways of the supporting supports 8 and 9 and is also table to tilt relative to the supports 8 and 9.
  • the unit 12 is caused to move upwards relative to the supports 8 and 9 and in so doing starts to lift the pile or column .
  • each end of the pile or column is closed by end stopper/bung (not shown) at The end stoppers/bungs are provided with valves (not shown) to allow the ingress of water at the bottom of the pile or column 14 and the egress of air at the top of the pile or column.
  • the valves are selectively remotely controllable to allow controlled flooding of the pile or column 14 .
  • the stoppers/bungs are conveniently fitted into the ends of the pile or column 14 by means of friction inflatable bladders which form a watertight seal. When the pile or column 14 is in its required vertical setting and is ready for its lowering to the seabed the bladders are deflated.
  • the top stopper/bung is conveniently removed by means of an on board crane whilst the lower stopper/bung is allowed to drop to the seabed for later retrieval by the crane or other convenient means.
  • the upper gripper/support unit 1 1 is able to be closed to its pile or column gripping setting whereby the pile or column 14 can be totally supported by the upper and lower gripper/support means/units and thus the associated load supporting arrangement above the seabed
  • the lower end 20 of the pile or column is lowered into contact with the seabed or other water bed by simultaneously lowering the upper and lower gripper/support means/ means/units 11, 12 relative to the supports 8 and 9 until the pile or column 14 is firmly set in to the sea bed.
  • the gripper/support means/unit 11 and 12 can be operated to free them from engagement with the pile or column 14 and the jack-up barge 3 lowered and moved from the erected pile or column 14 to another location of use.
  • the second gripper/support unit 12 is positioned below that of the second gripper/support unit i.e., the unit 11, used to steady and grip the pile or column unit 1 1 it is possible to arrange matters so that the second unit is located beneath the first gripperr/support unit 12 . This arrangement is particularly suitable for the handing of piles or columns in relatively deep water.
  • FIG 8 this Figure schematically illustrates successive stages in the tilting of the pile or column 14 whilst being gripped by the lower gripper/support unit 12.
  • FIGS 9 to 13 illustrate the construction and mode of operation of the gripper/support means/units 11 and 12.
  • a gripper/support unit 11/12 is shown therein as an end view when in its horizontal setting for receiving a pile or column
  • the unit includes a generally semicircular main section 21 and two curved side panels 22 that pivotally connected to the free edges 23 of the main section 21.
  • the side panels are selectively displaceable between the position shown in Figure 7 to a closed position in which they form with the main section a closed cylindrical formation.
  • the side panels are lockable in their closed positions by locking arrangements 24 .
  • the positioning of the side panels can conveniently be effected by hydraulic rams 25.
  • the means/means/units 11, 12 are displaceable as required lengthways of the associated supports using the latter as guide means.
  • Figure 10 illustrates a operational position in which the pile or column 14 is positioned immediately above a gripper/support unit so that the pile or column is located immediately above the trough like main section 21. Once this position has been reached and the required centre of gravity offsetting has been set the associated means/unit 11 is raised so that the pile or column nests into the main section. This part nesting position is illustrated in Figure 11.
  • Figure 13 illustrates the operational position when the pile or column has been fully nested and the side panels 22 have been moved to their closed and locked positions whereby the pile or column 14 is firmly gripped by the means/unit.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Mechanical Engineering (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)

Abstract

L'objet de la présente invention concerne une installation destinée à la manipulation d'un pilier ou colonne (14) en vue de son érection à un endroit prédéterminé dans un lit (SB) subaquatique, et comprenant des moyens (3) pour la localisation du pilier ou la colonne à l'endroit prédéterminé, des moyens/unités de préhension/soutien (11, 12) pour entrer en contact avec le pilier ou la colonne (14) à un endroit décalé (17) du centre de gravité du pilier ou de la colonne lorsque ce pilier ou cette colonne flotte dans l'eau ainsi que des moyens qui permettent au pilier ou à la colonne de basculer dans la position désirée par rapport au dit lit subaquatique (SB).
PCT/GB2007/003575 2006-09-26 2007-09-24 Améliorations concernant et portant sur l'installation de pilier ou de colonne WO2008037963A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0618885.8 2006-09-26
GB0618885A GB0618885D0 (en) 2006-09-26 2006-09-26 Improvements in and relating to pile or column installation

Publications (1)

Publication Number Publication Date
WO2008037963A1 true WO2008037963A1 (fr) 2008-04-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2007/003575 WO2008037963A1 (fr) 2006-09-26 2007-09-24 Améliorations concernant et portant sur l'installation de pilier ou de colonne

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GB (2) GB0618885D0 (fr)
WO (1) WO2008037963A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK2372143T3 (en) * 2010-03-29 2018-10-01 Geosea Nv EQUIPMENT AND PROCEDURE TO RISE A LARGE SLIM BODY ON THE SEA, LIKE A MONOPOLY FOR A WIND TURBINE

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3859806A (en) * 1972-09-05 1975-01-14 Exxon Production Research Co Offshore platform
DE2457998A1 (de) * 1974-12-07 1976-06-16 Meerestech Seebau Ing Ims Unterwasserbauwerk fuer grosse meerestiefen sowie verfahren zur herstellung eines unterwasserbauwerks
GB2294490A (en) * 1994-10-26 1996-05-01 Doris Engineering Offshore Gravity Platform Structures and Methods of Construction and Installation.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1004164A (en) * 1963-11-06 1965-09-08 California Research Corp Column support for offshore platforms
GB1022524A (en) * 1964-07-28 1966-03-16 Ichijuro Yamaguchi A method of erecting a marine drilling device
US3805534A (en) * 1972-05-09 1974-04-23 Shell Oil Co Slide resistant platform anchor conductor silo
GB9626784D0 (en) * 1996-12-23 1997-02-12 Kvaerner Oil & Gas Ltd Substructure and method of installation
US6715962B2 (en) * 2000-01-07 2004-04-06 Smith International, Inc. Assembly and floatation method for drilling drivepipe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3859806A (en) * 1972-09-05 1975-01-14 Exxon Production Research Co Offshore platform
DE2457998A1 (de) * 1974-12-07 1976-06-16 Meerestech Seebau Ing Ims Unterwasserbauwerk fuer grosse meerestiefen sowie verfahren zur herstellung eines unterwasserbauwerks
GB2294490A (en) * 1994-10-26 1996-05-01 Doris Engineering Offshore Gravity Platform Structures and Methods of Construction and Installation.

Also Published As

Publication number Publication date
GB0718546D0 (en) 2007-10-31
GB2442323A (en) 2008-04-02
GB0618885D0 (en) 2006-11-01

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